I have had a plroblem with my check engine light comming on for quite some time now :banghead: .
I've been getting DTC P0455 Evaporative Emissions Control LEak (Large) and can't seem to find the problem. I've changed the gas cap a few times and haven't noticed any fuel odors around my car.
Just recently I also got DTC P0480 Cooling fan 1 control circuit malfunction.
I have no idea what to do for either of these problems. Any advice anyone could give would be greatly appreciated.

Thanks

I have had a plroblem with my check engine light comming on for quite some time now :banghead: .
I've been getting DTC P0455 Evaporative Emissions Control LEak (Large) and can't seem to find the problem. I've changed the gas cap a few times and haven't noticed any fuel odors around my car.
Just recently I also got DTC P0480 Cooling fan 1 control circuit malfunction.
I have no idea what to do for either of these problems. Any advice anyone could give would be greatly appreciated.

Thanks
VENT VALVE!!!!!!!!!! Just had it done....

a 2004 cav? wow! anyhow all these cavs have these "emission" problems. mine is 0440, 0445 and some other shit....could be my vent valve or the filler in the tank, maybe i should try the gas cap.

a 2004 cav? wow! anyhow all these cavs have these "emission" problems. mine is 0440, 0445 and some other shit....could be my vent valve or the filler in the tank, maybe i should try the gas cap.
I would get them to check the vent valve first...And make sure that your gas cap is on really tight! Thats what my problem was!

ya, my cap is loose...vent valve? hmm.

ya, my cap is loose...vent valve? hmm...
Yepperz, have it checked...also.....Positive Battery terminal and fuel filter!!!! I have been running supreme fuel in it and it has been fine!

ok thanks.

Your Welcome....Let me know if it helps!!!